im having problems too. what i did was just go with the force they give you save all your command points soon as you launch they give you some extra command points drop a troop turret left side and right to drop a vehical turret land as manny heavy troopers and get a few y-wings. save game often soon as the swoop-bikes show up crush them and instantly at-st at-pt come from top right and behind them are artilery use y-wing to bomb artilery and make sure you kill the prob-bot before the at-s come now that you killed them all send your y-wing's on bombing runs on turrets. save after each complete run so you don't lose them. get rid of as many as you can then rush the anti-air with heavy troops.
The force is strong with this one.